Attachment for electrical conduits.



No. 729,505. PATENTEij MAY 26, 1903 A. MoMURTRIB.

ATTACHMENT FOR ELECTRICAL OVONDUITS.

APPLIOATIO'H FILED JAN. 11, 1902.

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UNITED STATES Patented May 26, 1903.

PATENT OFFICE.

ADNAH MOMURTRIE, or NEW YORK, N. Y., ASSIGNOR To THOMAS AND BET'IS, or NEW YoRK, N. v., A FIRM.

ATTACHMENT FOR ELECTRICAL CONDUITS.

SPECIFICATION forming part'of Letters Patent N 0. 729,505, dated May 26, 1903.

Application filed January 11,1902. Serial No. 89,346. (No model.)

To all whom, it may concern.-

Be it known that I, ADNAH MOMURTRIE, of New York, State of New York, have invented certain Improvements in Attachments for Electrical Conduits, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings designating like parts.

This invention relates to house-wiring systems for the distribution of electricity in lighting and like purposes, and more particularly to means for the adjustment of wallbrackets or similar lamp supports or fixtures at the region of the juncture thereof with the conduit.

It happens frequently that the outlet-box or similar conduit member to which the bracket is connected is not plumb, with the result that the fixture is left awry or is forced into the proper position at the cost of distortion of the fixture, with consequent ruin to its finish or to the rigidity of the fixture and conduit or insulating-joint or other parts.

My invention contemplates an. attachment capable of being interposed between the outlet-box, outlet-pipe, or similar conduit member and the wall-bracket, lamp, or any standard form of fixture or the like in use, without requiring alteration of the fixture, &c., and the character of the attachment being such that the angle of the fixture to the wall or other surrounding may be adjusted in any direction with the greatest nicety as the requirements of any given situation are developed.

I have provided and devised an attachment which is as general in its application as the well-known insulating-joint for fixtures and the like, and my attachment may be used with the aforesaid insulating-joint, as will be understood upon reference to the accompany ing drawings and specification, in which the various features of my invention will be illustrated and described fully, and pointed out in the claims.

form. Fig. 2 shows in side elevation the parts of the attachment separate from the box and detached from each other.

In the embodiment of my invention selected for illustration and description as a convenient form to enable a ready and complete understanding of 1n y improvements, referring particularly to Figs. 1 and 2, the part desig nated by the reference-numeral 1 may be described as the attaching member, by which my device may be secured to the conduit member in connection with which it is to be used, and in this instance the latter takes the form of a well-known type of outlet-box a. The means of connection may be varied as. found convenient and suitable, and as such boxes usually have holes Z; to receive screws 0 by which the ordinary standard nonadjustable fixture-stud is secured, I have shown lugs 2 on my attaching member to receive the screws, thus insuring its capacity for ready attachment to existing conduit members without necessity for altering them. So, also, a threaded recess 3 may be provided to receive the threaded end of a conduit or the like. In accordance with my invention I provide another member 4:, which I designate as the supporting member, carrying a studreceptacle or equivalent device 5, to which may be secured in the usual manner a bracket, lamp, or other fixture (using the latter term in a general and non-technical sense) and means to enable the members to be adjusted in different angular positions relatively to their respective axes and to hold them in adj u sted relation, thereby to present the fixture in desired angular position relatively to the outlet-box or other conduit member, and therefore to thewall,'ceiling, or other situation where the fixture has been located. In the figures under discussion the attaching member is shown as having a rather broad top or bearing-surface 6, preferably pitted as at 7, and a threaded periphery 8, while the stud or supporting member has a flange or foot 9, which stands upon the surface 6, to which it may be clamped by an internally threaded collar 10, the rim 11 of which engages the flange. The members are rotatable relatively to each other about their common longitudinal axis, and the stud or supporting member can be tilted also, so that the uni- Versal adjustment in the instance illustrated can be accomplished in a manner easily understood, the means for controlling the adjustment residing in a set-screw 12, carried by the stud member and bearing against the surface 6, the pits 7 whereof when used aiding rigidity of connection. The stud or supporting member is shown as threaded at 13, like the ordinary standard non-adjustable stud, but its construction may be varied as desired and found suitable, just as that of the ordinary stud is often varied.

Having thus described my invention fully with reference to certain embodiments there of, I wish it understood that I do not limit myself to these specific embodiments, nor to the use of my improved attachment with any specific conduit, nor in general otherwise than as set forth in the claims read in connection with this specification.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isg 1. An attachment of the class described for electrical conduit; comprising an attaching member; a stud or supporting member capable of angular axial adjustment relatively to said attaching member; means intermediate said members to accomplish said angular adjustment positively; and a collar connecting said members to hold them in adjusted position.

2. A umversally-adjustable fixtnrestud; comprising an attaching member; a stud or supporting member; a set-screw to control the angular axial relation of said members; and a collar to connect said members.

An attachment of the class described; comprising an attaching member, having attaching means, a bearing surface, and a threaded periphery; a supporting member, having a stud or supporting portion, a flange, and a set-screw; and a collar, threaded internally to run upon said threaded periphery of said attaching portion and having a rim to engage said flange of said supportingmember; said parts being rotatable about a common axis, with reference to which said supporting member is capable of angular adjustment controlled by said set-screw.

Signed at New York, in the county of New York and State of New York, this 9th day of January, A. 1902.

ADNAH MCMURTRIE.

Witnesses:

ALEXANDER O. PROUDFIT, WM. F. STONEBRIDGE. 

